CN111410106A

CN111410106A - Elevator turns over buffer device

Info

Publication number: CN111410106A
Application number: CN202010338442.2A
Authority: CN
Inventors: 朱俊华; 郑亨翡
Original assignee: ZHEJIANG FEIYA ELEVATOR CO Ltd
Current assignee: ZHEJIANG FEIYA ELEVATOR CO Ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-07-14

Abstract

The invention provides an elevator folding and overturning buffer device aiming at the defects of inconvenient use and poor structural strength of an elevator buffer suitable for a shallow pit in the prior art, and belongs to the technical field of elevators, the elevator folding and overturning buffer device comprises a supporting seat and an overturning seat, wherein a main buffer is fixedly arranged at the upper end of the supporting seat, an auxiliary buffer is fixedly arranged at the upper end of the overturning seat, the supporting seat is connected with the overturning seat through a hinge, the overturning seat can be overturned around the hinge to be switched between a combined state and an opened state, a groove is arranged at the lower end of the overturning seat, and when the overturning seat is in a combined state, the overturning seat covers the upper end of the supporting seat and the main buffer is positioned in the; when the overturning seat is in an open state, the auxiliary buffer on the overturning seat is arranged downwards and the overturning seat is lower than the main buffer; and a driving mechanism for driving the overturning seat to overturn around the hinged part is arranged between the supporting seat and the overturning seat. The invention has adjustable height, is suitable for shallow pits, can be convenient for workers to overhaul and can improve the safety performance.

Description

Elevator turns over buffer device

Technical Field

The invention belongs to the technical field of elevators, and particularly relates to an elevator turnover buffer device.

Background

GB7588-2003 Elevator manufacturing and installing safety code stipulates that when the car is completely pressed on the buffer, a space of 0.5m × 0.6m × 1m is required below the lowest part of the car, and the space is just the minimum space which can be hidden by one person, so the space is the safety guarantee space for people entering a pit, the total height of the buffer meeting the requirements is more than 800mm, and the depth of the pit of an elevator shaft is more than 1450 mm.

Under the condition that an old building is predominantly provided with an elevator, underground pipelines and foundations are complex, and large machinery is difficult to excavate in a well site, in order to avoid foundation interference, the difficulty of excavating a pit is reduced, the excavation workload is reduced, the depth of the pit of the elevator is reduced, but the depth of the pit is too small to meet the requirement, a general elevator buffer is used, when the pit overhauling safety space is met, a lift car cannot be leveled on the first floor due to the limitation of the height of the buffer, namely the general elevator buffer is not suitable for a shallow pit elevator. In order to solve the problem, the invention patent with the publication number of CN200985232 is provided in the prior art and is named as a turnable elevator buffer, the device is provided with two buffer bodies with different heights, the buffer body with the lower height is vertically arranged in normal operation, the buffer body with the higher height is transversely arranged, the buffer body with the higher height is switched to the buffer body with the higher height when maintenance is needed, namely, the two buffer bodies are turned over simultaneously, the buffer body with the higher height is vertically arranged, the buffer body with the lower height is transversely arranged, the turning process needs a worker to enter an elevator pit firstly to operate and fix the buffer body with a positioning pin, the turning device is complex and has certain potential safety hazard, the positions of the two buffer bodies are adjusted simultaneously through turning, the buffer bodies or a support is supported only through arranging a hinge shaft, and the strength of a supporting structure is poor.

Disclosure of Invention

The invention provides an elevator turnover buffer device aiming at the defects of inconvenient use and poor structural strength of an elevator buffer suitable for a shallow pit in the prior art.

The invention aims to be realized by the following technical scheme: an elevator turnover buffer device comprises a supporting seat and a turnover seat, wherein a main buffer is fixedly arranged at the upper end of the supporting seat, an auxiliary buffer is fixedly arranged at the upper end of the turnover seat, the supporting seat and the turnover seat are connected through a hinge, the turnover seat can be turned around the hinge to be switched between a combined state and an open state, a groove for placing the main buffer is formed in the lower end of the turnover seat, and when the turnover seat is in the combined state, the turnover seat covers the upper end of the supporting seat and the main buffer is positioned in the groove; when the overturning seat is in an open state, the auxiliary buffer on the overturning seat is arranged downwards and the overturning seat is lower than the main buffer; and a driving mechanism for driving the overturning seat to overturn around the hinged part is arranged between the supporting seat and the overturning seat.

In the scheme, when the elevator operates normally, the overturning seat is in an open state, the auxiliary buffer on the overturning seat is arranged downwards, the main buffer is positioned at a working position at the moment, and the main buffer is supported by the supporting seat; the overturning seat can be overturned to the supporting seat in a mode that the driving mechanism drives the overturning seat to overturn, the supporting seat and the overturning seat are overlapped and combined at the moment, the overturning seat is in a combined state, the overall height of the overturning seat is improved at the moment, the auxiliary buffer is located at the working position, the supporting seat supports the overturning seat, the overturning seat supports the auxiliary buffer, and the overall supporting structure is good in strength. The control switch of the driving mechanism can be installed outside the elevator pit, and can be operated outside the elevator shaft, so that the elevator shaft is safer.

Preferably, a first UKS switch used for controlling lighting equipment in an elevator pit is fixedly arranged on the supporting seat, a first switch stop block matched with the first UKS switch is fixedly arranged on the overturning seat, and when the overturning seat is in a combined state, the first switch stop block is in contact with the first UKS switch and drives the first UKS switch to work. The first UKS switch can be switched on to switch on lighting equipment in the elevator pit, so that workers can conveniently enter the pit to overhaul.

Preferably, a second UKS switch connected with an elevator safety circuit is fixedly arranged on the supporting seat, a second switch stop matched with the second UKS switch is fixedly arranged on the overturning seat, and when the overturning seat is in an open state, the second switch stop is in contact with the second UKS switch and drives the second UKS switch to work. Only second switch dog drive second UKS switch work just can switch on elevator safety circuit, makes the elevator can normal operating, and when second switch dog and second UKS switch separation, elevator safety circuit disconnection, elevator stop motion can increase the safety guarantee to the staff.

Preferably, the driving mechanism is an electric push rod, the lower end of the main body part of the electric push rod is hinged to the supporting seat, and the outer end of the push rod of the electric push rod is hinged to the side face of the overturning seat. The elevator push rod drives the overturning seat to overturn, so that the elevator overturning device is controlled, and the elevator overturning device is simple in structure and high in practicability.

Preferably, a notch communicated with the groove is formed in the joint between the side face of the overturning seat back to the hinge joint and the lower end face of the overturning seat. The setting up of breach makes can not contact with main buffer when the upset seat overturns, avoids main buffer to cause the influence to the upset of upset seat.

Preferably, the supporting seat comprises a lower base plate, a supporting column is fixedly connected to the upper end face of the lower base plate, an upper base plate parallel to the lower base plate is fixedly connected to the upper end of the supporting column, and the peripheral side faces of the upper base plate and the peripheral side faces of the lower base plate respectively protrude outwards relative to the side faces of the supporting column.

Preferably, the turnover seat comprises a transverse plate with a square structure, vertical plates are fixedly connected to the periphery of the lower end face of the transverse plate, adjacent vertical plates are vertically and fixedly connected, crosspieces are fixedly connected to the lower ends of the vertical plates, adjacent crosspieces are vertically and fixedly connected, and two sides of each crosspiece protrude outwards relative to the side face of each vertical plate; the side plates and the crosspieces which are back to the hinged part are provided with the notches.

Compared with the prior art, the invention has the following beneficial effects: the invention selects to use the main buffer and the auxiliary buffer by driving the overturning seat to overturn through the arranged driving mechanism, is safer and more automatic, and is suitable for shallow elevator pits. First UKS switch and second UKS switch through setting up can be used for connecting lighting apparatus and elevator safety circuit respectively, can be convenient for the staff and overhaul and can promote the security performance.

Drawings

FIG. 1 is a schematic view of the assembled state structure of the present invention;

FIG. 2 is a schematic structural view of the present invention in an open state;

the labels in the figure are: 1. supporting seat, 2, upset seat, 3, lower plate, 4, support column, 5, upper plate, 6, diaphragm, 7, riser, 8, crosspiece, 9, main buffer, 10, vice buffer, 11, hinge, 12, recess, 13, actuating mechanism, 14, breach, 15, first UKS switch, 16, first switch dog, 17, second UKS switch, 18, second switch dog.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings to which:

example 1

As shown in fig. 1 and 2, the elevator turnover buffer device comprises a supporting seat 1 and a turnover seat 2, wherein the supporting seat 1 comprises a lower base plate 3, a supporting column 4 is fixedly connected to the upper end surface of the lower base plate 3, an upper base plate 5 parallel to the lower base plate 3 is fixedly connected to the upper end of the supporting column 4, and the peripheral side surfaces of the upper base plate 5 and the peripheral side surfaces of the lower base plate 3 respectively protrude outwards relative to the side surfaces of the supporting column 4. The turnover seat 2 comprises a transverse plate 6 with a square structure, the periphery of the lower end face of the transverse plate 6 is fixedly connected with vertical plates 7, the adjacent vertical plates 7 are fixedly connected vertically, the lower ends of the vertical plates 7 are fixedly connected with crosspieces 8, the adjacent crosspieces 8 are fixedly connected vertically, and two sides of the crosspieces 8 protrude outwards relative to the side faces of the vertical plates 7.

The upper end face of an upper bottom plate 5 of the supporting seat 1 is fixedly provided with a main buffer 9, the upper end face of a transverse plate 6 of the overturning seat 2 is fixedly provided with an auxiliary buffer 10, the supporting seat 1 and the overturning seat 2 are hinged through a hinge 11, the overturning seat 2 can be overturned around the hinged part to be switched between a combined state and an opened state, the lower end of the overturning seat 2 is provided with a groove 12 for placing the main buffer 9, and when the overturning seat 2 is in the combined state, the overturning seat 2 covers the upper end of the supporting seat 1 and the main buffer 9 is positioned in the groove 12; when the turnover seat 2 is in an open state, the auxiliary buffer 10 on the turnover seat 2 is arranged downwards, and the turnover seat 2 is lower than the main buffer 9; be equipped with between supporting seat 1 and the upset seat 2 drive upset seat 2 round the actuating mechanism 13 of articulated department upset, actuating mechanism 13 is electric putter, electric putter's main part lower extreme with supporting seat 1 is articulated, electric putter's push rod outer end with 2 side hinges of upset seat. And notches 14 communicated with the grooves 12 are arranged on the side plates and the crosspieces 8 of the turnover seat 2 back to the hinged parts.

Fixed first UKS switch 15 that is used for controlling lighting apparatus in the elevator pit that is equipped with on the supporting seat 1, fixed being equipped with on the upset seat 2 with first UKS switch 15 complex first switch dog 16, when upset seat 2 is located the composite state, first switch dog 16 and first UKS switch 15 contact and drive first UKS switch 15 work. Fixed second UKS switch 17 who is connected with elevator safety circuit that is equipped with on the supporting seat 1, fixed being equipped with on the upset seat 2 with second UKS switch 17 complex second switch dog 18, when upset seat 2 was located the open mode, second switch dog 18 and second UKS switch 17 contact and drive second UKS switch 17 work.

For the sake of this application in-service use, install actuating mechanism 13's control switch outside the elevator pit, the elevator is when normal use, and upset seat 2 is the open mode, and main buffer 9 plays the cushioning effect to the elevator car, and second switch dog 18 makes the switch-on of elevator safety circuit with second UKS switch 17's contact this moment, and second UKS switch 17 work guarantees that the elevator can normal operating. When workers need to overhaul the elevator pit, the control driving mechanism 13 drives the overturning seat 2 to overturn to a combined state, in the process, the second switch stop block 18 is separated from the second UKS switch 17, the elevator safety loop is disconnected at the moment, the elevator stops running, the first switch stop block 16 is in contact with the contact of the first UKS switch 15, the lighting equipment in the elevator pit is turned on, the auxiliary buffer 10 is located at the working position at the moment, the auxiliary buffer 10 can play a buffering role for the elevator car, the workers do not enter the elevator pit at the moment and take safety measures and give illumination, and the safety performance can be greatly improved. When the overhaul is finished, the worker leaves the elevator pit, the drive mechanism 13 can be controlled to work outside the elevator pit at the moment, the overturning seat 2 is enabled to overturn downwards to return to the original position, the main buffer 9 is exposed, the first switch stop block 16 is separated from the first UKS switch 15, the lighting equipment in the elevator pit is closed, the second switch stop block 18 is in contact with the contact of the second UKS switch 17, the elevator safety loop is switched on, and the elevator can run normally. The safety performance of the whole process is greatly improved, and the operation is convenient.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The elevator turnover buffer device is characterized by comprising a supporting seat (1) and a turnover seat (2), wherein a main buffer (9) is fixedly arranged at the upper end of the supporting seat (1), an auxiliary buffer (10) is fixedly arranged at the upper end of the turnover seat (2), the supporting seat (1) and the turnover seat (2) are connected through a hinge (11), the turnover seat (2) can be turned around the hinge to be switched between a combined state and an open state, a groove (12) for placing the main buffer (9) is formed in the lower end of the turnover seat (2), and when the turnover seat (2) is in the combined state, the turnover seat (2) covers the upper end of the supporting seat (1) and the main buffer (9) is located in the groove (12); when the turnover seat (2) is in an open state, the auxiliary buffer (10) on the turnover seat (2) is arranged downwards, and the turnover seat (2) is lower than the main buffer (9); a driving mechanism (13) for driving the overturning seat (2) to overturn around the hinged part is arranged between the supporting seat (1) and the overturning seat (2).

2. An elevator turnover buffer device as defined by claim 1, characterized in that the supporting base (1) is fixedly provided with a first UKS switch (15) for controlling lighting equipment in the elevator pit, the turnover base (2) is fixedly provided with a first switch stop (16) matched with the first UKS switch (15), and when the turnover base (2) is in the combined state, the first switch stop (16) is contacted with the first UKS switch (15) and drives the first UKS switch (15) to work.

3. An elevator turn buffer device as claimed in claim 2, characterized in that the supporting base (1) is fixedly provided with a second UKS switch (17) connected to the elevator safety circuit, the turning base (2) is fixedly provided with a second switch stop (18) cooperating with the second UKS switch (17), and when the turning base (2) is in the open state, the second switch stop (18) contacts the second UKS switch (17) and drives the second UKS switch (17) to operate.

4. The elevator turnover buffer device of claim 1, characterized in that the driving mechanism (13) is an electric push rod, the lower end of the main body part of the electric push rod is hinged with the supporting seat (1), and the outer end of the electric push rod is hinged with the side surface of the turnover seat (2).

5. An elevator turn-over buffer device according to claim 1, characterized in that the joint between the side of the turn-over seat (2) facing away from the hinge and the lower end face of the turn-over seat (2) is provided with a notch (14) communicating with the groove (12).

6. The elevator turning buffer device according to claim 1, wherein the supporting seat (1) comprises a lower bottom plate (3), a supporting pillar (4) is fixedly connected to the upper end surface of the lower bottom plate (3), an upper bottom plate (5) parallel to the lower bottom plate (3) is fixedly connected to the upper end of the supporting pillar (4), and the peripheral side surface of the upper bottom plate (5) and the peripheral side surface of the lower bottom plate (3) respectively protrude outwards relative to the side surface of the supporting pillar (4).

7. The folding buffer device for the elevator as claimed in claim 6, wherein the turning seat (2) comprises a transverse plate (6) with a square structure, vertical plates (7) are fixedly connected to the periphery of the lower end surface of the transverse plate (6), adjacent vertical plates (7) are vertically and fixedly connected, crosspieces (8) are fixedly connected to the lower ends of the vertical plates (7), adjacent crosspieces (8) are vertically and fixedly connected, and two sides of each crosspiece (8) protrude outwards relative to the side surface of each vertical plate (7); the side plates and the crosspieces (8) which are back to the hinged part are provided with the notches (14).